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1. WO2020112810 - FLOW FIELD BAFFLE FOR MOLTEN CARBONATE FUEL CELL CATHODE

Publication Number WO/2020/112810
Publication Date 04.06.2020
International Application No. PCT/US2019/063301
International Filing Date 26.11.2019
IPC
H01M 8/026 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0258characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
026characterised by grooves, e.g. their pitch or depth
H01M 8/0265 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0258characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
0265the reactant or coolant channels having varying cross sections
H01M 8/0444 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0444Concentration; Density
H01M 8/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
14Fuel cells with fused electrolytes
CPC
H01M 2008/147
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
14Fuel cells with fused electrolytes
147Fuel cells with molten carbonates
H01M 8/026
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0258characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
026characterised by grooves, e.g. their pitch or depth
H01M 8/0265
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0258characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
0265the reactant or coolant channels having varying cross sections
H01M 8/04455
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0444Concentration; Density
04455of cathode reactants at the inlet or inside the fuel cell
H01M 8/0447
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0444Concentration; Density
0447of cathode exhausts
H01M 8/145
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
14Fuel cells with fused electrolytes
144characterised by the electrolyte material
145comprising carbonates
Applicants
  • EXXONMOBIL RESEARCH AND ENGINEERING COMPANY [US]/[US]
  • FUELCELL ENERGY, INC. [US]/[US]
Inventors
  • GEARY, Timothy C.
  • BARCKHOLTZ, Timothy A.
  • ROSEN, Jonathan
  • DAS, Sandipan K.
  • WILLMAN, Carl A.
  • HILMI, Abdelkader
  • YUH, Chao-Yi
Agents
  • HOWARD, Jason O.
Priority Data
16/695,28026.11.2019US
62/773,42030.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLOW FIELD BAFFLE FOR MOLTEN CARBONATE FUEL CELL CATHODE
(FR) DÉFLECTEUR DE CHAMP D'ÉCOULEMENT POUR CATHODE DE PILE À COMBUSTIBLE À CARBONATE FONDU
Abstract
(EN)
Molten carbonate fuel cell configurations are provided that include one or more baffle structures within the cathode gas collection volume. The baffle structures can reduce the unblocked flow cross-section of the cathode gas collection volume by 10% to 80%. It has been discovered that when operating a molten carbonate fuel cell under conditions for elevated CO2 utilization, the presence of baffles can provide an unexpected benefit in the form of providing increased transference and/or increased operating voltage.
(FR)
L'invention concerne des configurations de piles à combustible à carbonate fondu qui comprennent une ou plusieurs structures de déflecteur à l'intérieur du volume de collecte de gaz de cathode. Les structures de déflecteur peuvent réduire de 10 % à 80 % la section transversale d'écoulement non bloquée du volume de collecte de gaz de cathode. Il a été découvert que lors du fonctionnement d'une pile à combustible à carbonate fondu dans des conditions permettant une utilisation élevée du CO2, la présence de déflecteurs peut apporter un bénéfice inattendu sous la forme d'une migration accrue et/ou d'une tension de fonctionnement accrue.
Also published as
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